EP1104514B1 - Amortisseur hydraulique de vibrations pour vehicules a moteur - Google Patents

Amortisseur hydraulique de vibrations pour vehicules a moteur Download PDF

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Publication number
EP1104514B1
EP1104514B1 EP99938252A EP99938252A EP1104514B1 EP 1104514 B1 EP1104514 B1 EP 1104514B1 EP 99938252 A EP99938252 A EP 99938252A EP 99938252 A EP99938252 A EP 99938252A EP 1104514 B1 EP1104514 B1 EP 1104514B1
Authority
EP
European Patent Office
Prior art keywords
bypass
vibration damper
manner
hydraulic vibration
valve slide
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP99938252A
Other languages
German (de)
English (en)
Other versions
EP1104514A1 (fr
Inventor
Zhen Dr. Huang
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ThyssenKrupp Bilstein GmbH
Original Assignee
ThyssenKrupp Bilstein GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ThyssenKrupp Bilstein GmbH filed Critical ThyssenKrupp Bilstein GmbH
Publication of EP1104514A1 publication Critical patent/EP1104514A1/fr
Application granted granted Critical
Publication of EP1104514B1 publication Critical patent/EP1104514B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/32—Details
    • F16F9/3207—Constructional features
    • F16F9/3214—Constructional features of pistons
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/32—Details
    • F16F9/44—Means on or in the damper for manual or non-automatic adjustment; such means combined with temperature correction
    • F16F9/46—Means on or in the damper for manual or non-automatic adjustment; such means combined with temperature correction allowing control from a distance, i.e. location of means for control input being remote from site of valves, e.g. on damper external wall
    • F16F9/466—Throttling control, i.e. regulation of flow passage geometry

Definitions

  • the invention relates to a hydraulic vibration damper for motor vehicles with a damping piston, which has switchable bypass openings, according to Preamble of claim 1.
  • the invention has for its object a hydraulic vibration damper to further develop such that when switching or controlling the flow of bypass channels the interference caused by the constantly changing hydraulic forces from the damping agent flow, are reduced.
  • a piston rod is immersed in a cylinder 1 containing a damping fluid 2 oscillating one.
  • a Damping piston 3 is arranged, the cylinder space in two working spaces 4, 5th divided.
  • the damping piston 3 is provided with passages 6, 7, one Flow through the damping fluid alternatively in a pulling or pushing motion of the damping piston 3.
  • Spring washers 8 act on the one hand as a check valve and on the other as a throttle valve, which is used depending on the pressure difference between the work rooms 4 and 5 to open the passage openings 9 more or less.
  • a bypass channel system is used for this, via the damping identifier given by the damping piston 3 of the shock absorber can be adjusted in two stages.
  • an adjustment drive serves a solenoid valve with a ring coil, which is accommodated in a coil body 10 becomes.
  • This coil body 10 is supplied with current from the outside.
  • the electrical lines 11 are through a central bore 12 of the piston rod 3 led.
  • a cylindrical valve spool 13 which in a central bore 14 of the Coil body 10 is guided axially movable, is used to open or close the Bypass channels.
  • valve slide 13 Against the force of a coil spring 15 that can be loaded under pressure the valve slide 13 depending on the current applied to the coil body 10 arranged Ring coil can be brought into two different opening positions.
  • the Valve slide 13 is hollow cylindrical with a central partition 16, which divides the hollow cylinder into two opposite pot spaces 17, 18. At the top Pot space 17, the helical spring 15 is arranged.
  • the lower pot space 18 is on the opening side Edge formed with a sealing edge 19.
  • the bobbin 10 is provided with an external thread at the end Pin 20 attached to the piston rod 2, which has a corresponding at its end Has internal thread.
  • an adapter piece 21, which has a thread is fixed to the bobbin 10 and extends under the bobbin 10, the Damping piston 3 connected.
  • the adapter piece 21 is in its central area 22 constructed as a valve body and extends with a hollow pin 23 after below.
  • the hollow pin 23 carries the damping piston 3 on its outer circumference, which is clamped on the hollow pin 23 via a nut 24.
  • Within the Hollow pin 23 an inflow and outflow passage 25 is arranged for the bypass channels.
  • Check valves 26 are located within the inflow and outflow passage 25 serve the bypass identifier for the compression or rebound of the vibration damper to design differently.
  • bypass channels 27, 28 Two systems of bypass channels 27, 28 that extend radially in a radial manner are arranged one above the other in the central region 22 of the adapter piece 21. They end in a hole towards the center through the immersed valve slide 13 can be closed.
  • the bottom wall 29 of the one below Bypass channel 27 extends centrally further inwards and serves as a counter-sealing surface for the sealing cutting edge 19 of the valve slide 13.
  • This lower wall 29 has in the center of a bore 30, which is a hydraulic connection to the inflow and outflow passage 25 forms.
  • the system of bypass channels 27 which is only to be opened is at a certain distance to the valve spool 13 with a constriction 33.
  • This narrowing 33 of the system of the bypass channels 27 is in the exemplary embodiment as an annular bead 34 educated. Other constriction options are conceivable.
  • the narrowing can also be produced by an insertable ring made of metal or plastic. It is also conceivable that the narrowing by means of elastic or resilient means is formed so that, depending on the pressure difference between the work rooms 4, 5th releases a different cross section.
  • the removal of the constriction 33 from the valve slide 13 is chosen so that the generated by the high flow velocity of the damping fluid hydraulic influences hardly on the closing function of the valve slide 13 impact. This makes it easier and safer to hold the valve slide 13 in the first opening position, in which the valve spool is only above the preset electrical holding force is ensured.
  • the one shown in the drawing complete closed position of the valve slide 13 or the complete Open position, in which both systems of bypass channels 27, 28 are open, are relatively independent of corresponding hydraulically induced forces.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Fluid-Damping Devices (AREA)
  • Vehicle Body Suspensions (AREA)

Claims (5)

  1. Amortisseur hydraulique de vibrations pour véhicules automobiles, avec un cylindre (1) qui contient un liquide d'amortissement, et une tige de piston (2) qui s'y enfonce, qui est disposée de manière à pouvoir s'y déplacer axialement de manière étanche, et à l'extrémité de laquelle est fixé un piston d'amortissement (3) qui divise la chambre du cylindre en deux chambres de travail (4, 5), qui est doté de passages variables qui sont commandés par un corps de soupape d'étranglement, et qui présente de plus une dérivation pour l'étage de compression et l'étage de traction, dont la section transversale est ajustée par une soupape magnétique qui travaille en trois étages ou davantage, et dont la bobine annulaire ouvre plus ou moins un coulisseau de soupape (13), ce qui libère successivement deux ou plusieurs ouvertures de dérivation, caractérisé en ce qu'au moins le premier canal de dérivation (27) commandé après la position de fermeture du coulisseau de soupape (13), présente un rétrécissement (33) situé à distance du coulisseau de soupape (13).
  2. Amortisseur hydraulique de vibrations selon la revendication 1, caractérisé en ce que le coulisseau de soupape (13) est configuré en cylindre, et en ce que les canaux de dérivation (27, 28) s'étendent d'une part axialement au centre, et d'autre part radialement en forme de disque ou de rayon.
  3. Amortisseur hydraulique de vibrations selon la revendication 2, caractérisé en ce que plusieurs canaux de dérivation (27, 28) configurés en forme de disques ou de rayons se superposent mutuellement dans le sens axial, leurs ouvertures centrales de dérivation pouvant être fermées ou ouvertes successivement par le coulisseau de soupape (13).
  4. Amortisseur hydraulique de vibrations selon l'une ou plusieurs des revendications 1 à 3, caractérisé en ce que le coulisseau de soupape (13) est configuré en godet.
  5. Amortisseur hydraulique de vibrations selon l'une ou plusieurs des revendications 1 à 4, caractérisé en ce que le rétrécissement (33) est variable.
EP99938252A 1998-08-11 1999-07-15 Amortisseur hydraulique de vibrations pour vehicules a moteur Expired - Lifetime EP1104514B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19836286 1998-08-11
DE19836286A DE19836286A1 (de) 1998-08-11 1998-08-11 Hydraulischer Schwingungsdämpfer für Kraftfahrzeuge
PCT/EP1999/005007 WO2000009912A1 (fr) 1998-08-11 1999-07-15 Amortisseur hydraulique de vibrations pour vehicules a moteur

Publications (2)

Publication Number Publication Date
EP1104514A1 EP1104514A1 (fr) 2001-06-06
EP1104514B1 true EP1104514B1 (fr) 2003-10-22

Family

ID=7877142

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99938252A Expired - Lifetime EP1104514B1 (fr) 1998-08-11 1999-07-15 Amortisseur hydraulique de vibrations pour vehicules a moteur

Country Status (8)

Country Link
US (1) US6460663B1 (fr)
EP (1) EP1104514B1 (fr)
JP (1) JP2002522727A (fr)
AU (1) AU5282599A (fr)
BR (1) BR9912903A (fr)
DE (3) DE19836286A1 (fr)
ES (1) ES2205865T3 (fr)
WO (1) WO2000009912A1 (fr)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6668986B2 (en) * 2002-01-08 2003-12-30 Delphi Technologies, Inc. Active hydraulic fluid vehicular suspension damper
DE10309743B3 (de) * 2003-03-06 2004-05-27 Thyssenkrupp Bilstein Gmbh Hydraulischer Schwingungsdämpfer für Kraftfahrzeuge
DE10316957B3 (de) * 2003-04-12 2004-10-14 Zf Sachs Ag Schwingungsdämpfer mit amplitudenselektiver Dämpfkraft
DE10360140A1 (de) * 2003-12-20 2005-07-21 Daimlerchrysler Ag Dämpfungsvorrichtung für ein Kraftfahrzeug
JP4898563B2 (ja) * 2007-06-06 2012-03-14 カヤバ工業株式会社 ピストン
DE102009038818A1 (de) * 2009-08-25 2011-03-03 Thyssenkrupp Bilstein Suspension Gmbh Kraftfahrzeugstoßdämpfer
ITAN20120145A1 (it) 2012-11-08 2014-05-09 Tenneco Marzocchi S R L Forcella con elettrovalvola.
DE102013008889B4 (de) * 2013-05-27 2016-01-28 Thyssenkrupp Bilstein Gmbh Schwingungsdämpfer für ein Fahrzeug
DE102013008887B4 (de) * 2013-05-27 2016-01-28 Thyssenkrupp Bilstein Gmbh Schwingungsdämpfer für ein Fahrzeug
US10393210B2 (en) 2016-11-18 2019-08-27 Beijingwest Industries Co., Ltd. Dual mode hydraulic damper
CN112203879A (zh) * 2018-05-29 2021-01-08 日立汽车系统株式会社 悬架装置
KR20200017850A (ko) * 2018-08-09 2020-02-19 주식회사 만도 감쇠력 가변식 쇽업소버
RU186333U1 (ru) * 2018-09-28 2019-01-16 Федеральное государственное бюджетное образовательное учреждение высшего образования "Волгоградский государственный технический университет" (ВолгГТУ) Амортизатор
CN113613915A (zh) * 2019-03-26 2021-11-05 日立安斯泰莫株式会社 阻尼力调节式缓冲器
US20230082373A1 (en) * 2021-09-14 2023-03-16 Fox Factory, Inc. Bypass port piston
CN116733892B (zh) * 2023-07-20 2026-01-06 浙江大学 用于凿岩机钎杆传动中的减震-预警系统和紧急预警方法
US12460736B2 (en) * 2024-01-02 2025-11-04 Solero Technologies, Llc Smart damping control valve
US20250237285A1 (en) * 2024-01-22 2025-07-24 Fox Factory, Inc. Adjustable position sensitive base valve

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2592656A (en) * 1948-11-19 1952-04-15 John G Catranis Piston and valve assembly for hydraulic control devices
DE3518327A1 (de) * 1985-05-22 1986-11-27 Boge Gmbh, 5208 Eitorf Hydraulischer, verstellbarer schwingungsdaempfer
DE3832625C2 (de) * 1987-10-13 1999-06-24 Hauni Werke Koerber & Co Kg Schwingungsdämpfer mit veränderbarer Dämpfungscharakteristik
GB2227547B (en) * 1988-12-14 1992-10-28 Tokico Ltd Adjustable damping force hydraulic shock absorber
JP2964148B2 (ja) * 1989-04-20 1999-10-18 トキコ株式会社 減衰力調整式油圧緩衝器
JPH03217311A (ja) * 1990-01-23 1991-09-25 Mazda Motor Corp 車両のサスペンション装置
DE4020045C1 (en) * 1990-06-23 1991-08-29 August Bilstein Gmbh & Co. Kg, 5828 Ennepetal, De Hydraulic shock absorber for vehicle - has coil compression springs mounted between core housing and armature
DE4041619A1 (de) * 1990-12-22 1992-06-25 Bosch Gmbh Robert Zylinder
US5749596A (en) * 1996-09-16 1998-05-12 General Motors Corporation Latchable stabilizer bar actuator
DE19650152C1 (de) * 1996-12-04 1998-02-12 Krupp Bilstein Gmbh Proportionalventil mit veränderbarer Kennung
FR2757047B1 (fr) 1996-12-16 1999-02-05 Oreal Composition cosmetique comprenant des composes mineraux photochromes
US5950775A (en) * 1997-08-12 1999-09-14 Achmad; Muchlis In-tube shock absorber mounted electromagnetically operated damper valve and shock absorber including adapter

Also Published As

Publication number Publication date
JP2002522727A (ja) 2002-07-23
DE19836286A1 (de) 2000-02-24
DE19981559D2 (de) 2001-11-08
EP1104514A1 (fr) 2001-06-06
DE59907467D1 (de) 2003-11-27
ES2205865T3 (es) 2004-05-01
BR9912903A (pt) 2001-05-08
US6460663B1 (en) 2002-10-08
WO2000009912A1 (fr) 2000-02-24
AU5282599A (en) 2000-03-06

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